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59 строки
1.8 KiB
C++
59 строки
1.8 KiB
C++
#include <iostream>
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#include <vector>
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#include <string>
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#include "svg.h"
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using namespace std;
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void
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svg_begin(double width, double height) {
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cout << "<?xml version='1.0' encoding='UTF-8'?>\n";
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cout << "<svg ";
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cout << "width='" << width << "' ";
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cout << "height='" << height << "' ";
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cout << "viewBox='0 0 " << width << " " << height << "' ";
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cout << "xmlns='http://www.w3.org/2000/svg'>\n";
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}
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void
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svg_end() {
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cout << "</svg>\n";
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}
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void
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svg_text(double left, double baseline, size_t font, string text){
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cout << "<text x='" << left << "' y='" << baseline << "' font-size='" << font << "' >" << text << " </text>" << endl;
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return;
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}
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void
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svg_rect(double x, double y, double width, double height, string stroke = "#ed53a8", string fill = "#9df3a1"){
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cout << "<rect x='" << x << "' y='" << y << "' width= '" << width << "' height= '" << height << "' stroke= '" << stroke << "' fill= '" << fill << "'/>" << endl;
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return;
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}
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void
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show_histogram_svg(const vector <size_t> &bins, size_t &font) {
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const auto IMAGE_WIDTH = 800;
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const auto IMAGE_HEIGHT = 600;
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const auto TEXT_LEFT = 20;
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const auto TEXT_BASELINE = 20;
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const auto TEXT_WIDTH = 50;
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const auto BIN_HEIGHT = 30;
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const auto BLOCK_WIDTH = 10;
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const auto MAX_VALUE = IMAGE_WIDTH - TEXT_WIDTH;
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svg_begin(IMAGE_WIDTH, IMAGE_HEIGHT);
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double top = 0;
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size_t max_count = 0;
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for (auto now: bins)
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{if (now > max_count) {max_count = now;}}
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for (size_t bin : bins){
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double bin_width = BLOCK_WIDTH * bin;
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if (bin == max_count) {bin_width = MAX_VALUE * 1.0;}
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else {bin_width = MAX_VALUE * (static_cast <double> (bin) / max_count);}
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svg_text(TEXT_LEFT, top + TEXT_BASELINE, font, to_string(bin));
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svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT);
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top += BIN_HEIGHT;
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}
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svg_end();
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return;
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}
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